Higgins Dye-Based Drawing Ink, Indigo, 1 Ounce Bottle (44117) Use with brushes and dip pens on paper and board Color may be mixed or diluted with water to create ranges of shades and hues Non-waterproof and fadeproof ink produces a vivid, transparent color that will not chip, peel, feather or smear Very slow drying time produces a matte sheen Made in USA